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With the deepening of the Geological Survey, China Geological Survey and geological science has made a large number of new results and new progress, especially since the new round of Geological Survey, a blank area of ??the Qinghai-Tibet Plateau, Daxinganling including in scale regional geological survey coverage, 1:100 000 geological map of the preparation and the establishment of the database provides a wealth of basic information. Application of GIS technology for the preparation of the 1:100 000 geological map and database established to provide technical support. In this paper, through the establishment of 1:100 000 digital geological map database, geology, GIS, geological cartography combined application MapGIS software, combined with other database software the ArcInfo, Access, and so on, according to the latest progress of the regional geological surveys, especially in recent years achieved 1:250000 regional geological survey data and thematic research, 1:100 000 geological map prepared on the basis of the establishment of 1:100 000 digital geological map database, to achieve the integration of multi-source geological map data for geological periodic comprehensive survey data, dynamic update and share laid the foundation. The major achievements include the following five aspects: 1, through the preparation of the national 1:1000000 geographic base, the establishment of a database of geographic base, 1:100 000 topographic map data from ArcGIS (coverage file) format data is converted to MapGIS ( wt, wl, wp File) format data. 2, according to the general requirements of the 1:100 000 digital geological map database were 1:1000000 geographic base elements of hierarchical processing and hierarchical file naming system comprehensive data on the mass, so to meet the same scale geological map needs. MapGIS environment, application of GIS attribute information, and to redefine the elements of drawing layer parameters, and to accelerate the speed of graphics editing. 3, the application of modern GIS space technology, geological maps have been prepared and database. Rational design prepared geological body (wp) geological boundaries (wl), point-like geological elements (drilling, crater (wt)) attribute structure, properties, items and its representation of content, for the latter part of database construction and application, to achieve laid the foundation for data query, retrieval. 4, according to the characteristics of the 1:100 000 geological map, designed to prepare the 64 sub-pictures for meta-data and general drawing metadata standard format, laid the foundation for the sharing of 1:100 000 geological map. The preparation and database requirements of the building, according to the geological map based MapGIS development established geological map database check system, mainly the following functions: Graphic display function; properties of geological data checks, including the structure of the properties of all the layers, the field name , check and modify property values; modify the attributes of geological factors and parameters; selection of graphic objects.
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